Title :
A MEMS reconfigurable matching network for a class AB amplifier
Author :
Lu, Yumin ; Peroulis, Dimitrios ; Mohammadi, Saeed ; Katehi, Linda P B
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
This letter presents the design of a reconfigurable amplifier with an adaptive matching network implemented by shunt MEMS switches. In particular, the MEMS switches are used as capacitive stubs in double-stub matching circuit designs. The effective capacitance of the switches can be varied by switch activation which results in a change of the matching configuration. The RF response of the adaptive matching network is studied and the power performance of the amplifier is presented.
Keywords :
UHF amplifiers; UHF integrated circuits; circuit tuning; impedance matching; micromechanical devices; reconfigurable architectures; MEMS reconfigurable matching network; RF response; adaptive matching network; capacitive stubs; class AB amplifier; double-stub matching circuit designs; power performance; shunt MEMS switches; switch activation; Adaptive systems; Capacitance; Circuit synthesis; Frequency; Impedance matching; Micromechanical devices; Microswitches; Plastic packaging; Radiofrequency amplifiers; Switches;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2003.818523
